8139440

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1433}}^1$

素因数の和:1517

約数の個数: 40

約数和(自身を含む): 19204128

約数和(自身を除く): 11064688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 1433, 2840, 2866, 5680, 5732, 7165, 11464, 14330, 22928, 28660, 57320, 101743, 114640, 203486, 406972, 508715, 813944, 1017430, 1627888, 2034860, 4069720, 8139440]

約数ペア:

[(1, 8139440), (2, 4069720), (4, 2034860), (5, 1627888), (8, 1017430), (10, 813944), (16, 508715), (20, 406972), (40, 203486), (71, 114640), (80, 101743), (142, 57320), (284, 28660), (355, 22928), (568, 14330), (710, 11464), (1136, 7165), (1420, 5732), (1433, 5680), (2840, 2866)]